html {
    overflow-x: hidden;
    overflow-y: scroll;
    // overflow-anchor: none;
    background: #ebf0f0;
}
/* 清除内外边距 */

body, h1, h2, h3, h4, h5, h6, hr, p, blockquote,
/* structural elements 结构元素 */

dl, dt, dd, ul, ol, li,
/* list elements 列表元素 */

pre,
/* text formatting elements 文本格式元素 */

fieldset, button, input, textarea, th, td {
    margin: 0;
    padding: 0;
}

/* 设置默认字体 */

@font-face {
    font-family: 'Play';
    font-style: normal;
    font-weight: 400;
    src: url(../fonts/Play.woff2) format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}

body,
button,
input,
select,
textarea {
    color: #333;
    outline: none;
    font-family: -apple-system-font, 'Helvetica Neue', Tahoma, 'PingFang SC', 'lantinghei sc', 'Microsoft Yahei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1 {
    font-size: 20px;
    /* 18px / 12px = 1.5 */
}

h2 {
    font-size: 18px;
}

h3 {
    font-size: 16px;
}

h4,
h5,
h6 {
    font-size: 100%;
}

address,
cite,
dfn,
em,
var {
    font-style: normal;
}

/* 统一等宽字体 */

/* 小于 12px 的中文很难阅读，让 small 正常化 */
small {
    font-size: 12px;
}

/* 重置列表元素 */
ul,
ol {
    list-style: none;
}

/* 重置文本格式元素 */
a {
    text-decoration: none;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
}

a:hover {
    text-decoration: none;
}

abbr[title],
acronym[title] {
    /* 注：1.ie6 不支持 abbr; 2.这里用了属性选择符，ie6 下无效果 */
    border-bottom: 1px dotted;
    cursor: help;
}

q:before,
q:after {
    content: '';
}

/* 重置表单元素 */
legend {
    color: #000;
}

/* for ie6 */
fieldset,
img {
    border: none;
}

/* 注：optgroup 无法扶正 */
button,
input,
select,
textarea {
    font-size: 100%;
    /* 使得表单元素在 ie 下能继承字体大小 */
}

/* 重置表格元素 */

table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* 重置 hr */
hr {
    border: none;
    height: 1px;
}

article,
aside,
canvas,
figure,
figure img,
figcaption,
hgroup,
footer,
header,
nav,
section,
audio,
video {
    position: relative;
    display: block;
}

nav ul,
nav ol {
    list-style: none;
}

.hidden {
    display: none;
}
